Do not ICE if some foreign expansions were not encoded.

The metadata encoder does not necessarily encode all expansions, only those which are referenced in other metadata fields.
rust-lang · Oct 2, 2021 · f3e6d03 · f3e6d03
1 parent d1def47
commit f3e6d03
Showing 1 changed file with 0 additions and 2 deletions.
diff --git a/compiler/rustc_metadata/src/rmeta/decoder.rs b/compiler/rustc_metadata/src/rmeta/decoder.rs
@@ -1645,8 +1645,6 @@ impl<'a, 'tcx> CrateMetadataRef<'a> {
                     let i = ExpnIndex::from_u32(i);
                     if let Some(hash) = self.root.expn_hashes.get(self, i) {
                         map.insert(hash.decode(self), i);
-                    } else {
-                        panic!("Missing expn_hash entry for {:?}", i);
                     }
                 }
                 map